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No 12 volt accessory port on newer trucks

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Old Dec 9, 2025 | 5:37 PM
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Default No 12 volt accessory port on newer trucks

My 2025 LT truck lacks a single 12-volt accessory port. I use it for a dash camera and for a Garmin RV GPS and for a tire air compressor and for a DC fridge in the cab. None of the USB to 12v adapters work so I am SOL thanks to the bean counters at GM. Had I known of this deficiency I would have bought a Ram truck instead.
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Old Dec 9, 2025 | 6:02 PM
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Default Why?

What would the point be in having More deficiencies ?


Originally Posted by elkhornsun
My 2025 LT truck lacks a single 12-volt accessory port. I use it for a dash camera and for a Garmin RV GPS and for a tire air compressor and for a DC fridge in the cab. None of the USB to 12v adapters work so I am SOL thanks to the bean counters at GM. Had I known of this deficiency I would have bought a Ram truck instead.
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Old Dec 10, 2025 | 4:20 AM
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Originally Posted by elkhornsun
My 2025 LT truck lacks a single 12-volt accessory port. I use it for a dash camera and for a Garmin RV GPS and for a tire air compressor and for a DC fridge in the cab. None of the USB to 12v adapters work so I am SOL thanks to the bean counters at GM. Had I known of this deficiency I would have bought a Ram truck instead.
that does suck bro........I use my 12v on my 2021 for my Radar Detector.


Last edited by kevin spahr; Dec 10, 2025 at 4:26 AM.
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Old Dec 10, 2025 | 8:18 AM
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Wow! That seems like a major deficiency, but from a little Googling, that feature seems to be something that GM started phasing out on most truck trim levels as early as 2022. My 2006 Silverado has 2 DC outlets (one is an actual cigarette lighter!). My 1996 C1500 has 3 (1 cigarette lighter, two for DC power).

While I imagine you can add something like that to the truck, it won't be as clean and easy as if it came from the factory.
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Old Dec 10, 2025 | 11:33 AM
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Use the USB C port. That can support most 12 V accessories
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Old Dec 10, 2025 | 2:00 PM
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The USB-C port lacks the amperage capacity for the majority of 12VDC devices including an air compressor and a fridge. Few if any devices for automotive use have a USB-C port and so it was stupid to eliminate the accessory port, a $3 item in cost to Ford. Once again human engineering for the real world fails.

I can spend $80 for a 120VAC to 12VDC converter and have the two cords laying around in the cab of the truck but this is insanity.
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Old Dec 10, 2025 | 2:45 PM
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Originally Posted by elkhornsun
The USB-C port lacks the amperage capacity for the majority of 12VDC devices including an air compressor and a fridge. Few if any devices for automotive use have a USB-C port and so it was stupid to eliminate the accessory port, a $3 item in cost to Ford. Once again human engineering for the real world fails.

I can spend $80 for a 120VAC to 12VDC converter and have the two cords laying around in the cab of the truck but this is insanity.
I’ve seen where 2024’s are potting out 40 watts from the usb c. It would be worth a shot. I get it’s not 110V but a lot of accessories are 12 V and should work.
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Old Dec 11, 2025 | 3:06 PM
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It is a problem with the amps needed. 40 watts at 12VDC is only 3.3 amps and I doubt that the GM port can provide even that amount. Cigarette lighter ports usually provide up to 10 amps which is more than enough. USB devices draw less than 2 amps as with a smartphone charger.

Check the compliants on Amazom by people who bought USB to power port cable adapters. Bottom line - they do not work.
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Old Dec 13, 2025 | 6:05 PM
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One could always purchase something like this:

Amazon Amazon

It can be wired into the fuse panel located on the passenger side of the dash using a fuse tap/add a circuit found at most auto part stores

https://www.oreillyauto.com/detail/c...=add+a+circuit

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Old Feb 11, 2026 | 11:04 AM
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Yeah, I was baffled as well on my 2026. Had to purchase a new USB cord for my radar detector.
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